CN110887174B - Control method of air conditioner and air conditioner - Google Patents
Control method of air conditioner and air conditioner Download PDFInfo
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- CN110887174B CN110887174B CN201811053104.3A CN201811053104A CN110887174B CN 110887174 B CN110887174 B CN 110887174B CN 201811053104 A CN201811053104 A CN 201811053104A CN 110887174 B CN110887174 B CN 110887174B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention belongs to the technical field of air conditioners, and particularly provides a control method of an air conditioner and the air conditioner. The invention aims to solve the problem of poor user experience of the existing air conditioner air speed control method. To this end, the control method of the air conditioner of the present invention includes: acquiring the surface temperature of a human body and the indoor environment temperature; comparing the surface temperature of the human body with the indoor environment temperature; based on the comparison result, the air speed of the air supply fan of the air conditioner is selectively adjusted. Through the control mode, the control method of the air conditioner can selectively adjust the air speed of the air supply fan according to the comparison result of the surface temperature of the human body and the indoor environment temperature, so that a user can be always in a comfortable environment, the condition that the human body is uncomfortable due to overhigh or overlow air speed is avoided, and the use experience of the user is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a control method of an air conditioner and the air conditioner.
Background
An air conditioner is a device capable of cooling/heating a room, and for example, in hot summer, the air conditioner may lower the room temperature by cooling and blowing air, thereby making people feel comfortable.
In the conventional air conditioner, after a user sets a target temperature, the air conditioner is automatically operated to gradually increase/decrease an indoor ambient temperature to the target temperature and maintain the target temperature, and in a cooling/heating process of the air conditioner, an air speed of supplied air is generally changed according to a difference between the indoor temperature and the target temperature. However, the control method for changing the air speed according to the difference between the indoor temperature and the target temperature only considers the refrigeration efficiency and does not consider the user experience, and when the air speed of the fan is high and the body temperature of the user is low, the air supply method is easy to cause discomfort to the human body, for example, children or old people with weak physique are always in high air speed, and the disease is easy to occur. When the wind speed of the fan is low and the body temperature of a user is high, the user needs to be cooled down quickly, the body temperature of the user cannot be lowered to the appropriate temperature quickly by the aid of the air supply mode, and user experience is seriously affected.
Therefore, there is a need in the art for a new control method of an air conditioner to solve the above-mentioned problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem of poor user experience in the wind speed control method of the conventional air conditioner, the present invention provides a control method of an air conditioner, the control method including:
acquiring the surface temperature of a human body and the indoor environment temperature;
comparing the human body surface temperature with the indoor environment temperature;
based on the comparison result, the air speed of the air supply fan of the air conditioner is selectively adjusted.
In a preferred embodiment of the method for controlling an air conditioner, the step of selectively adjusting the wind speed of the blower fan of the air conditioner based on the comparison result further includes:
and when the difference value between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value, adjusting the air speed of the air supply fan according to a first adjusting proportion.
In a preferred embodiment of the control method of the air conditioner, the first adjustment ratio is determined based on a difference between a surface temperature of a human body and the indoor environment temperature, and/or a distance between the air conditioner and the human body;
wherein, the distance between the air conditioner and the human body is obtained by the air conditioner.
In a preferred embodiment of the method for controlling an air conditioner, the step of selectively adjusting the wind speed of the blower fan of the air conditioner based on the comparison result further includes:
when the difference value between the human body surface temperature and the indoor environment temperature is larger than a first temperature threshold value, further comparing the outdoor environment temperature with the indoor environment temperature;
and selectively adjusting the wind speed of the air supply fan based on the comparison result.
In a preferred embodiment of the method for controlling an air conditioner, the step of "selectively adjusting the wind speed of the blower fan based on the comparison result" further includes:
and when the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a second temperature threshold value, adjusting the air speed of the air supply fan according to a second adjusting proportion.
In a preferred embodiment of the control method of the air conditioner, the second adjustment ratio is determined based on a difference between the surface temperature of the human body and the indoor ambient temperature, a difference between the outdoor ambient temperature and the indoor ambient temperature, and/or a distance between the air conditioner and the human body;
wherein, the distance between the air conditioner and the human body is obtained by the air conditioner.
In a preferred embodiment of the above method for controlling an air conditioner, the method further includes:
and when the difference between the surface temperature of the human body and the indoor environment temperature is less than or equal to a first temperature threshold, or the difference between the outdoor environment temperature and the indoor environment temperature is less than or equal to a second temperature threshold, controlling the air supply fan to operate at the current air speed.
In a preferred embodiment of the control method of an air conditioner, before the step of "selectively adjusting the wind speed of the blower fan of the air conditioner based on the comparison result", the control method further includes:
identifying human facial features;
obtaining an age of the person based on the human facial features;
judging the sizes of the age and a first age threshold value and/or a second age threshold value;
and controlling the air conditioner to enter a set air supply mode based on the judgment result.
In a preferred embodiment of the above method for controlling an air conditioner, the step of "controlling the air conditioner to enter a set air blowing mode based on the determination result" further includes:
when the age is larger than or equal to a first age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode;
when the age is smaller than the first age threshold and larger than a second age threshold, controlling the air conditioner to enter an air supply automatic following mode;
and when the age is smaller than or equal to the second age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode.
The present invention also provides an air conditioner including a controller configured to be able to perform the control method of the air conditioner of any one of the above-described preferred embodiments.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, a control method of an air conditioner includes: acquiring the surface temperature of a human body and the indoor environment temperature; comparing the surface temperature of the human body with the indoor environment temperature; based on the comparison result, the air speed of the air supply fan of the air conditioner is selectively adjusted.
Through the control mode, the control method of the air conditioner can selectively adjust the air speed of the air supply fan according to the comparison result of the surface temperature of the human body and the indoor environment temperature, so that a user can be always in a comfortable environment, the condition that the human body is uncomfortable due to overhigh or overlow air speed is avoided, and the use experience of the user is improved.
Specifically, when the difference between the surface temperature of the human body and the indoor ambient temperature is greater than the first temperature threshold, it indicates that the body temperature of the user is high, that is, the user feels hot, and the air conditioner is required to cool to reduce the ambient temperature, so that the user feels comfortable. And the air speed of the air supply fan is adjusted according to the first adjusting proportion, the first adjusting proportion is based on the difference value between the surface temperature of the human body and the indoor environment temperature and/or the control mode determined by the distance between the air conditioner and the human body, so that the air conditioner can further determine a proper adjusting proportion based on multivariate parameters such as the surface temperature of the human body, the indoor environment temperature, the distance between the human body and the air conditioner and the relation between the parameters, the air speed of the air supply fan is adjusted based on the adjusting proportion, the air speed is matched with the current use environment and the human body state, the air conditioner can simultaneously take the refrigeration efficiency and the user experience into account in the working process, and the balance between the refrigeration efficiency and the user experience is achieved.
Drawings
The control method of the air conditioner and the air conditioner according to the present invention will be described with reference to the accompanying drawings in conjunction with a cooling mode of the air conditioner. In the drawings:
fig. 1 is a flowchart of a control method of an air conditioner of the present invention;
fig. 2 is a control logic diagram of an air conditioner in accordance with an embodiment of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in conjunction with the cooling mode, this is not limitative, and the control method of the present invention can obviously be applied to other functional modes of the air conditioner, such as a heating mode, an air blowing mode, a dehumidification mode, and the like.
First, referring to fig. 1, a control method of an air conditioner of the present invention will be described. Fig. 1 is a flowchart illustrating a control method of an air conditioner according to the present invention.
As shown in fig. 1, in order to solve the problem of poor user experience in the conventional air speed control method for an air conditioner, the control method for an air conditioner of the present invention mainly includes the following steps:
s100, obtain human surface temperature and indoor ambient temperature, for example, can gather the temperature on human surface through the infrared sensor who sets up on the air conditioner, acquire indoor ambient temperature through indoor ambient temperature sensor to this infrared sensor and indoor ambient temperature sensor all are connected with the controller of air conditioner, so that can in time transmit the controller of air conditioner with the indoor ambient temperature who gathers. Preferably, the human body surface temperature is preferably the human body face temperature, because the human body face is generally exposed and the human body face temperature is also more reflective of the overall comfort condition of the human body.
S200, comparing the human body surface temperature with the indoor environment temperature, for example, directly comparing the human body surface temperature with the indoor environment temperature or calculating the difference between the human body surface temperature and the indoor environment temperature by a controller of the air conditioner and comparing the difference with a set threshold;
and S300, selectively adjusting the wind speed of a wind supply fan of the air conditioner based on the comparison result, for example, when the difference value between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value, indicating that the body temperature of the user is higher at the moment, namely the user feels hotter, and the air conditioner needs to refrigerate to reduce the environment temperature. At the moment, the air speed of the air supply fan is changed, so that the air blown out by the air conditioner can not cause discomfort of a human body, and meanwhile, the ambient temperature around a user can be reduced, and the comfort is brought to the user.
According to the control method of the air conditioner, the air speed of the air supply fan can be adjusted according to the comparison result of the surface temperature of the human body and the indoor environment temperature, so that a user can be always in a comfortable environment, the condition that the human body is uncomfortable due to overhigh or overlow air speed is avoided, and the use experience of the user is improved.
Of course, those skilled in the art can flexibly set the acquisition mode of the human body surface temperature in practical application as long as the human body surface temperature can be acquired. For example, a temperature sensor communicatively connected to a controller of an air conditioner is worn on a human body to collect a surface temperature of the human body. Likewise, the specific installation position and form of the indoor environment temperature sensor are not limited, and the indoor environment temperature sensor can be installed on the air conditioner, and also can be installed on an indoor wall or other electric equipment as long as the indoor environment temperature sensor can collect the indoor environment temperature and transmit the indoor environment temperature to the controller of the air conditioner after collecting the indoor environment temperature. In addition, the surface temperature of the human body can also be the temperature of other exposed positions of the human body, such as hands, neck and/or arms, and the like.
In a preferred embodiment, step S300 further comprises:
when the difference value between the surface temperature of the human body and the indoor environment temperature is larger than a first temperature threshold value, further comparing the outdoor environment temperature with the indoor environment temperature; and selectively adjusting the wind speed of the air supply fan based on the comparison result. Specifically, the method comprises the following steps: and when the difference value between the surface temperature of the human body and the indoor environment temperature is greater than a first temperature threshold value and the difference value between the outdoor environment temperature and the indoor environment temperature is greater than a second temperature threshold value, adjusting the air speed of the air supply fan according to a second adjusting proportion. And when the difference value between the surface temperature of the human body and the indoor environment temperature is smaller than or equal to a first temperature threshold value, or the difference value between the surface temperature of the human body and the indoor environment temperature is larger than the first temperature threshold value and the difference value between the outdoor environment temperature and the indoor environment temperature is smaller than or equal to a second temperature threshold value, controlling the air supply fan to operate at the current air speed.
For example, the first temperature threshold and the second temperature threshold may be 2 ℃, 3 ℃, 4 ℃, 5 ℃, etc., and the outdoor ambient temperature may be obtained by a temperature sensor connected to the controller, which is disposed in the outdoor unit of the air conditioner, in the same or similar manner as the indoor ambient temperature. When the difference value between the surface temperature of the human body and the indoor environment temperature is larger than the first temperature threshold value, the outdoor temperature is obtained, the outdoor environment temperature and the indoor environment temperature are compared, if the difference value is similar to the first temperature threshold value, the outdoor environment temperature and the indoor environment temperature can be directly compared, the difference value can also be calculated and compared with the set threshold value, and the air speed of the air supply fan is controlled based on the comparison result.
When the difference between the surface temperature of the human body and the indoor environment temperature is greater than the first temperature threshold value and the difference between the outdoor environment temperature and the indoor environment temperature is greater than the second temperature threshold value, the fact that the human body temperature is higher than the indoor environment temperature and the outdoor environment temperature at the moment is proved, the air supply air speed is required to be adjusted pertinently by the air conditioner to reduce the environment temperature around the human body, and at the moment, the air speed adaptive to the environment in the front room and the human body can be provided by adjusting the air speed according to the second adjusting proportion on the basis of the current air speed, so that the refrigeration effect and the user experience are considered simultaneously. When the surface temperature of the human body is not greatly different from the indoor environment temperature or the outdoor environment temperature is not greatly different from the indoor environment temperature, the fact that the human body is in a proper temperature environment at the moment is proved, the environment temperature around the human body does not need to be adjusted in a targeted mode, and therefore the wind speed does not need to be changed.
In addition, on the basis that the difference value between the surface temperature of the human body and the indoor environment temperature is compared with the first temperature threshold value, the judgment condition that the difference value between the outdoor environment temperature and the indoor environment temperature is compared with the second temperature threshold value is added, the accuracy of judging whether the air speed is regulated by the air conditioner can be improved, namely, the air conditioner is prevented from being misjudged, when the air conditioner obtains the deviation of the surface temperature of the human body (for example, when an infrared sensor used for obtaining the surface temperature of the human body breaks down), the air conditioner can be supplemented and judged through the outdoor environment temperature and the indoor environment temperature, so that the air conditioner cannot frequently regulate the air supply temperature due to the fact that the deviation of the surface temperature of the human body occurs, excessive energy consumption of the air conditioner due to misjudgment is avoided, and the service life of the air conditioner is prolonged.
The first temperature threshold and the second temperature threshold may be equal in value or may not be equal in value, for example, the second temperature threshold may be set higher than the first temperature threshold. In addition, the outdoor temperature sensor can also be obtained through an outdoor temperature sensor which is arranged on an outdoor wall and is in communication connection with the controller of the air conditioner, and of course, the outdoor temperature sensor can also be obtained in other modes as long as the outdoor environment temperature can be obtained by the controller of the air conditioner.
In one possible embodiment, the second adjustment ratio may be determined based on a difference between a surface temperature of the human body and an indoor ambient temperature, a difference between an outdoor ambient temperature and an indoor ambient temperature, and/or a distance between the air conditioner and the human body. For example, the second adjustment ratio may be determined based on equation (1):
in formula (1), V represents the second adjustment ratio, a represents the difference between the surface temperature of the human body and the indoor ambient temperature, B represents the difference between the outdoor ambient temperature and the indoor ambient temperature, S represents the distance between the air conditioner and the human body, and α represents the wind speed variation coefficient, such as α ═ 0.2. The distance S between the air conditioner and the human body can be obtained based on an infrared sensor, and can also be obtained based on other sensors capable of measuring distance or electrical components, and the sensor can be installed at any position of the air conditioner as long as the installation position can detect the human body.
For example, under the condition that the difference between the surface temperature of the human body and the indoor ambient temperature is greater than the first temperature threshold, and the difference between the outdoor ambient temperature and the indoor ambient temperature is greater than the second temperature threshold, assuming that a is 4 ℃, B is 6 ℃, S is 2m, and α is 0.2, V is calculated to be 1.6. That is to say, the difference between the indoor temperature and the outdoor temperature is great, and human body temperature and indoor temperature's difference is also great this moment, needs quick refrigeration, and the human distance from the air conditioner this moment is 2m, and the distance is far away, can suitably increase the air supply wind speed of air conditioner to under the uncomfortable prerequisite of not producing the human body, reduce indoor ambient temperature fast, consequently control wind speed adjustment is 1.6 times of former wind speed this moment, has compromise comfort level and refrigeration efficiency. For another example, when a is 2 ℃, B is 3 ℃, S is 1m, and α is 0.2, V is calculated to be 0.8. That is to say, the difference between the indoor temperature and the outdoor temperature is not large, the difference between the human body temperature and the indoor temperature is not large, although refrigeration is needed, the human body is 1m away from the air conditioner at the moment, the distance is short, and the human body can be uncomfortable by increasing the air supply speed of the air conditioner, so that the control air speed is adjusted to 80% of the original air speed at the moment, energy consumption is saved, and the human body can feel comfortable by the air blown out from the air conditioner on the basis of ensuring the refrigeration effect.
Of course, the above formula (1) is only one possible implementation of the second adjustment ratio, and the adjustment of the formula may be performed by those skilled in the art, as long as the adjustment of the formula enables the adjustment of the wind speed based on the calculation result to take the comfort and the cooling efficiency into consideration. For example, the second adjustment ratio may also be calculated using the following equation (2):
the meaning represented by the letter in formula (2) is the same as that in formula (1), and is not described herein again.
In another preferred embodiment, before step S300, the control method further includes:
identifying human facial features; obtaining an age of the person based on the facial features of the person; judging the sizes of the age and the first age threshold value and/or the second age threshold value; and controlling the air conditioner to enter a set air supply mode based on the judgment result. Specifically, when the age is greater than or equal to a first age threshold, controlling the air conditioner to enter an air supply automatic avoiding mode; when the age is smaller than the first age threshold and larger than the second age threshold, controlling the air conditioner to enter an air supply automatic following mode; and when the age is smaller than or equal to the second age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode.
For example, the first age threshold may be 60 years old, the second age threshold may be 16 years old, the image of the human face may be collected by an image collecting device (such as a camera, a video camera, etc.) for identifying the facial features of the human body, and then the data of the facial image of the human body is transmitted to a controller of the air conditioner for analysis processing, so as to obtain the age of the human body according to the facial features of the human body (such as facial color, hair color, and/or wrinkle length, etc.), and then the air conditioner enters the air supply automatic avoiding mode/air supply automatic following mode according to the age of the human body. The first age threshold and the second age threshold may divide the age of the person into three segments, where the first segment (i.e., the age of the person is greater than or equal to the first age threshold) is an elderly person, the second segment (i.e., the age of the person is less than the first age threshold and greater than the second age threshold) is a young or middle-aged person, and the third segment (i.e., the age of the person is less than or equal to the second age threshold) is a child. Because the physique of old people and children is slightly weak, the air conditioner is suitable for adopting an air supply automatic avoiding mode, namely the air conditioner can not blow directly towards places with the old people and the children, and the physique of young and middle-aged people is stronger, namely the air conditioner can intensively supply air towards the places with the young and middle-aged people. The realization of the automatic air supply avoiding mode and the automatic air supply following mode of the air conditioner can be realized by depending on the vertical air deflector and the horizontal air deflector in the prior art, and the description is omitted here.
By determining whether the air supply mode of the fan is an automatic avoiding mode or an automatic following mode before adjusting the air speed of the air supply fan, the control method can automatically select the air supply mode according to the age of people and can pertinently adjust the air speed of the air supply fan, so that the comfort of a human body is greatly improved, the air conditioner can meet the requirements of all people, and the user experience is further improved.
Of course, the first age threshold and the second age threshold are only exemplary, and those skilled in the art can flexibly set the specific age values of the first age threshold and the second age threshold in practical applications, as long as the age demarcation point determined by the first age threshold and the second age threshold enables the air conditioner to determine whether to enter the air supply automatic avoiding mode or the air supply automatic following mode.
It should be noted that the above-mentioned preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention, and those skilled in the art can modify the above-mentioned embodiments so that they can be adapted to more specific application scenarios without departing from the principle of the present invention.
For example, in an alternative embodiment, the step of controlling the air conditioner to enter the set air supply mode based on the human facial features may be omitted, and the air speed of the air supply fan may be controlled directly based on the difference between the human body surface temperature and the indoor temperature and the difference between the outdoor ambient temperature and the indoor ambient temperature.
For example, in another alternative embodiment, the step of comparing the outdoor ambient temperature with the indoor ambient temperature may be omitted, and the wind speed of the blower fan may be controlled based directly on the human body surface temperature and the indoor ambient temperature. For example, when the surface temperature of the human body and the indoor environment temperature are greater than a first temperature threshold value, the air speed of the air supply fan is adjusted according to a first adjusting proportion. The first temperature threshold may be 2 ℃, 3 ℃, 4 ℃ and the like, and the first adjustment proportion is similar to the second adjustment proportion and may be determined based on the difference between the surface temperature of the human body and the indoor environment temperature and/or the distance between the air conditioner and the human body. As can be determined with reference to the following equation (3):
the meaning represented by the letter in formula (3) is the same as that in formula (1), and is not described herein again.
For another example, when the air conditioner enters the automatic air supply avoiding mode or the automatic air supply following mode, the numerical values of the first temperature threshold value and the second temperature threshold value and the coefficients of the parameters in the formula (1) may be the same or different. For example, since the automatic avoidance mode is for elderly people and children, the wind speed variation coefficient α in the formula (1) can be reduced to prevent the adjusted wind speed of the blower fan from being too high to cause discomfort.
A control process of the air conditioner in one possible embodiment of the present invention will be described with reference to fig. 2. Fig. 2 is a control logic diagram of an air conditioner according to an embodiment of the present invention.
As shown in fig. 2, after the air conditioner is turned on, the human facial features are automatically recognized first, and the age N of the person is estimated based on the human facial features. If the person's age N is less than a first age threshold N1And is greater than a second age threshold N2If the person is young or middle-aged, the air conditioner is controlled to enter an air supply automatic following mode; otherwise, if the person's age N is greater than or equal to the first age threshold N1Or the year of a personAge N is less than or equal to a second age threshold N2If the person is the old or the child, the air conditioner is controlled to enter an air supply automatic avoiding mode. In the process of executing an air supply automatic following mode or an air supply automatic avoiding mode by the air conditioner, the facial temperature T of the human body is obtainedXIndoor ambient temperature TYAnd outdoor ambient temperature TZAnd according to the temperature T of the human faceXIndoor ambient temperature TYAnd outdoor ambient temperature TZJudging whether the air speed condition of the air conditioner for automatically adjusting the air supply fan is met, and when the temperature T of the face of the human body is within the range of the human bodyXTemperature T of indoor environmentYIs greater than or equal to a first temperature threshold TAAnd outdoor ambient temperature TZTemperature T of indoor environmentYIs greater than or equal to a second temperature threshold TBControlling the air conditioner to automatically adjust the air speed of the air supply fan according to a second adjustment proportion; if the temperature T of the human faceXTemperature T of indoor environmentYIs less than a temperature threshold TAOr outdoor ambient temperature TZTemperature T of indoor environmentYIs less than a second temperature threshold TBIf the air conditioner does not automatically adjust the air speed of the air supply fan and continues to acquire the face temperature T of the human bodyXIndoor ambient temperature TYAnd outdoor ambient temperature TZ。
Further, the present invention also provides an air conditioner including a controller configured to be able to perform the control method of the air conditioner described in the above embodiment. The controller may be a control chip disposed in the indoor unit or the outdoor unit, a controller dedicated to perform the method of the present invention, or a functional module or functional unit of a general controller.
Finally, although the present embodiment is described in conjunction with the cooling mode operation of the air conditioner, it is obvious that the present invention can also be applied to other functional modes of the air conditioner, such as a heating mode and an air blowing mode. For example, when the method is applied to the heating mode, the step of selectively adjusting the wind speed of the air supply fan of the air conditioner based on the comparison result comprises the following steps: when the surface temperature of the human body is lower than the indoor environment temperature, the human body temperature is proved to be lower at the moment, and the air conditioner is required to quickly heat to improve the environment temperature, so that the body temperature of a user is increased. At this time, the outdoor environment temperature and the indoor environment temperature are further compared; when the indoor environment temperature is lower than the outdoor environment temperature, the air speed of the air supply fan is adjusted according to the preset adjusting proportion so as to supply air to the room at a proper air speed and avoid the overcooling and overheating of the supplied air. Of course, the above comparison method is only exemplary, and those skilled in the art can flexibly set the comparison method between the surface temperature of the human body and the indoor environment temperature in practical applications. For example, the difference between the surface temperature of the human body and the indoor environment temperature may be compared with a set value, or the ratio between the surface temperature of the human body and the indoor environment temperature may be compared with a set value.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (5)
1. A control method of an air conditioner, characterized in that the control method comprises:
acquiring the surface temperature of a human body and the indoor environment temperature;
comparing the human body surface temperature with the indoor environment temperature;
selectively adjusting a wind speed of a supply fan of the air conditioner based on the comparison result;
wherein the step of selectively adjusting the wind speed of the blower fan of the air conditioner based on the comparison result further comprises:
when the difference value between the human body surface temperature and the indoor environment temperature is larger than a first temperature threshold value, further comparing the outdoor environment temperature with the indoor environment temperature;
selectively adjusting the wind speed of the air supply fan based on the comparison result;
wherein the step of "selectively adjusting the wind speed of the blower fan based on the comparison result" further comprises:
when the difference value between the outdoor environment temperature and the indoor environment temperature is larger than a second temperature threshold value, adjusting the air speed of the air supply fan according to a second adjusting proportion;
the second adjustment proportion is determined based on the difference between the human body surface temperature and the indoor environment temperature, the difference between the outdoor environment temperature and the indoor environment temperature, and the distance between the air conditioner and the human body;
the distance between the air conditioner and the human body is acquired by the air conditioner;
the second adjustment ratio is determined based on the following formula:
wherein V is the second regulation ratio, A is the difference between the human body surface temperature and the indoor environment temperature, B is the difference between the outdoor environment temperature and the indoor environment temperature, S is the distance between the air conditioner and the human body, and alpha is the wind speed variation coefficient.
2. The control method of an air conditioner according to claim 1, further comprising:
and when the difference between the surface temperature of the human body and the indoor environment temperature is less than or equal to a first temperature threshold, or the difference between the outdoor environment temperature and the indoor environment temperature is less than or equal to a second temperature threshold, controlling the air supply fan to operate at the current air speed.
3. The control method of an air conditioner according to any one of claims 1 to 2, wherein before the step of "selectively adjusting the wind speed of a supply fan of the air conditioner based on the comparison result", the control method further comprises:
identifying human facial features;
obtaining an age of the person based on the human facial features;
judging the sizes of the age and a first age threshold value and/or a second age threshold value;
and controlling the air conditioner to enter a set air supply mode based on the judgment result.
4. The method of claim 3, wherein the step of controlling the air conditioner to enter the set blowing mode based on the determination further comprises:
when the age is larger than or equal to a first age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode;
when the age is smaller than the first age threshold and larger than a second age threshold, controlling the air conditioner to enter an air supply automatic following mode;
and when the age is smaller than or equal to the second age threshold value, controlling the air conditioner to enter an air supply automatic avoiding mode.
5. An air conditioner including a controller, characterized in that the controller is configured to be able to execute the control method of the air conditioner of any one of claims 1 to 4.
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| CN201811053104.3A CN110887174B (en) | 2018-09-10 | 2018-09-10 | Control method of air conditioner and air conditioner |
| PCT/CN2019/098983 WO2020052369A1 (en) | 2018-09-10 | 2019-08-02 | Control method for air conditioner, and air conditioner |
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| CN111895612A (en) * | 2020-07-13 | 2020-11-06 | Tcl空调器(中山)有限公司 | Refrigeration control method and heating control method of air conditioner, air conditioner and storage medium |
| CN113482962A (en) * | 2021-08-06 | 2021-10-08 | 中山市技佳传动科技有限公司 | Self-adaptive control system and method based on fan temperature |
| CN113819635B (en) * | 2021-08-17 | 2022-10-28 | 青岛海尔空调器有限总公司 | Method and device for adjusting indoor air parameters and smart home system |
| CN113776170A (en) * | 2021-09-08 | 2021-12-10 | 青岛理工大学 | Air conditioner control system and control method |
| CN113959014A (en) * | 2021-10-23 | 2022-01-21 | 珠海格力电器股份有限公司 | Self-adaptive electric heating control device and control method thereof |
| CN113883694B (en) * | 2021-10-29 | 2023-05-12 | 海信空调有限公司 | Air conditioner and control method thereof |
| CN114151918B (en) * | 2021-11-26 | 2023-04-25 | 宁波奥克斯电气股份有限公司 | Air conditioner dehumidification control method and device and air conditioner |
| CN114543314B (en) * | 2022-04-08 | 2023-09-15 | 安徽奥克斯智能电气有限公司 | Air conditioner efficiency improving control method and air conditioner |
| CN114857755B (en) * | 2022-04-22 | 2023-05-26 | 美的集团武汉暖通设备有限公司 | Control method of indoor unit, controller, indoor unit, air conditioner and storage medium |
| CN115077004A (en) * | 2022-05-17 | 2022-09-20 | 青岛海尔空调器有限总公司 | Method and device for air conditioning, control device, storage medium |
| CN114811912A (en) * | 2022-05-27 | 2022-07-29 | 广东美的制冷设备有限公司 | Air conditioner operation control method and device, air conditioner and storage medium |
| CN115789889A (en) * | 2022-11-29 | 2023-03-14 | 珠海格力电器股份有限公司 | Control method and device of air conditioner |
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| WO2020052369A1 (en) | 2020-03-19 |
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Effective date of registration: 20220307 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co., Ltd Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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